63 lines
1.2 KiB
Rust
63 lines
1.2 KiB
Rust
use crate::How;
|
|
|
|
mod private {
|
|
use crate::How;
|
|
|
|
#[doc(hidden)]
|
|
pub trait IntoResultHow: Sized {
|
|
type T;
|
|
|
|
fn into_result_how(self) -> Result<Self::T, How>;
|
|
}
|
|
}
|
|
|
|
pub(crate) use private::IntoResultHow;
|
|
|
|
impl<T, E> IntoResultHow for Result<T, E>
|
|
where
|
|
E: std::error::Error,
|
|
{
|
|
type T = T;
|
|
|
|
#[inline(always)]
|
|
#[track_caller]
|
|
fn into_result_how(self) -> Result<Self::T, How> {
|
|
#[inline(never)]
|
|
#[track_caller]
|
|
fn into<E: std::error::Error>(e: E) -> How {
|
|
How::new(e.to_string())
|
|
}
|
|
match self {
|
|
Ok(t) => Ok(t),
|
|
Err(e) => Err(into(e))
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T> IntoResultHow for Result<T, How> {
|
|
type T = T;
|
|
|
|
#[inline(always)]
|
|
fn into_result_how(self) -> Result<Self::T, How> {
|
|
self
|
|
}
|
|
}
|
|
|
|
impl<T> IntoResultHow for Option<T> {
|
|
type T = T;
|
|
|
|
#[inline(always)]
|
|
#[track_caller]
|
|
fn into_result_how(self) -> Result<Self::T, How> {
|
|
#[inline(never)]
|
|
#[track_caller]
|
|
fn into() -> How {
|
|
How::new("Option::None")
|
|
}
|
|
match self {
|
|
Some(t) => Ok(t),
|
|
None => Err(into())
|
|
}
|
|
}
|
|
}
|